Lane healing rite when hurt enough to need it could be item #1, Buying Sprint Boots ASAP trying to not get hurt enough so it can be item #1, But dont upgrade them to Enduring Speed untill much later like minute 15-20 when you happen to have an extra 800 souls to spend while at the shop buying something else. The other items are left to right except Close quarters could me moved up in prio if you only have 800 and you need to buy now before the tower falls
Delay bullet lifesteal purchase untill forced to buy it. enemy is doing enough damage or the enemy Haze/Viper/Wraith etc on this side of the map have bullet lifesteal. Counter theirs by buying it yourself. Vampiric after Orange T4 item/items
After lane Left to right is generally how it goes but the 3200s are really situational, you might like Hunters aura #1 against a guncarry who's a real player